set_property PACKAGE_PIN U18 [get_ports CLK]
set_property PACKAGE_PIN L14 [get_ports RESET_n]
set_property PACKAGE_PIN H15 [get_ports {LED[0]}]
set_property PACKAGE_PIN L15 [get_ports {LED[1]}]
set_property IOSTANDARD LVCMOS33 [get_ports {LED[1]}]
set_property IOSTANDARD LVCMOS33 [get_ports {LED[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports CLK]
set_property IOSTANDARD LVCMOS33 [get_ports RESET_n]

set_property IOSTANDARD LVCMOS33 [get_ports BTN]
set_property PACKAGE_PIN K16 [get_ports BTN]
set_property PACKAGE_PIN M15 [get_ports {IO[7]}]
set_property PACKAGE_PIN L16 [get_ports {IO[6]}]
set_property PACKAGE_PIN N20 [get_ports {IO[5]}]
set_property PACKAGE_PIN M20 [get_ports {IO[4]}]
set_property PACKAGE_PIN T20 [get_ports {IO[3]}]
set_property PACKAGE_PIN P19 [get_ports {IO[2]}]
set_property PACKAGE_PIN P18 [get_ports {IO[1]}]
set_property PACKAGE_PIN W20 [get_ports {IO[0]}]

set_property IOSTANDARD LVCMOS33 [get_ports {IO[7]}]
set_property IOSTANDARD LVCMOS33 [get_ports {IO[6]}]
set_property IOSTANDARD LVCMOS33 [get_ports {IO[5]}]
set_property IOSTANDARD LVCMOS33 [get_ports {IO[4]}]
set_property IOSTANDARD LVCMOS33 [get_ports {IO[3]}]
set_property IOSTANDARD LVCMOS33 [get_ports {IO[2]}]
set_property IOSTANDARD LVCMOS33 [get_ports {IO[1]}]
set_property IOSTANDARD LVCMOS33 [get_ports {IO[0]}]

set_property IOSTANDARD LVCMOS33 [get_ports rx]
set_property IOSTANDARD LVCMOS33 [get_ports tx]
set_property PACKAGE_PIN J15 [get_ports tx]
set_property PACKAGE_PIN T19 [get_ports rx]
